de.javagl.viewer.painters.ImagePainter Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of viewer-core Show documentation

A Java Swing Panel that allows rotation, translation and zooming

The newest version!

/*
 * www.javagl.de - Viewer
 *
 * Copyright (c) 2013-2015 Marco Hutter - http://www.javagl.de
 * 
 * Permission is hereby granted, free of charge, to any person
 * obtaining a copy of this software and associated documentation
 * files (the "Software"), to deal in the Software without
 * restriction, including without limitation the rights to use,
 * copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following
 * conditions:
 * 
 * The above copyright notice and this permission notice shall be
 * included in all copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
 * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
 */
package de.javagl.viewer.painters;

import java.awt.Graphics2D;
import java.awt.geom.AffineTransform;
import java.awt.image.BufferedImage;

import de.javagl.viewer.ObjectPainter;

/**
 * An {@link ObjectPainter} that paints an image, filling the unit 
 * square.
 */
public final class ImagePainter implements ObjectPainter
{
    @Override
    public void paint(Graphics2D g, AffineTransform worldToScreen, 
        double w, double h, BufferedImage image)
    {
        if (image == null)
        {
            return;
        }
        AffineTransform oldAT = g.getTransform();
        g.transform(worldToScreen);
        double sx = 1.0 / image.getWidth();
        double sy = 1.0 / image.getHeight();
        g.scale(sx, sy);
        g.drawImage(image, 0, 0, null);
        g.setTransform(oldAT);
    }
    
}